2181980062017 has 48 divisors (see below), whose sum is σ = 3737141046912. Its totient is φ = 1246266673920.

The previous prime is 2181980062007. The next prime is 2181980062061. The reversal of 2181980062017 is 7102600891812.

2181980062017 is a `hidden beast` number, since 2 + 1 + 8 + 1 + 9 + 8 + 0 + 0 + 620 + 17 = 666.

It is not a de Polignac number, because 2181980062017 - 2³⁵ = 2147620323649 is a prime.

It is a super-2 number, since 2×2181980062017² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2181980062007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3379063 + ... + 3972659.

It is an arithmetic number, because the mean of its divisors is an integer number (77857105144).

Almost surely, 2^{2181980062017} is an apocalyptic number.

2181980062017 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2181980062017 is a deficient number, since it is larger than the sum of its proper divisors (1555160984895).

2181980062017 is an equidigital number, since it uses as much as digits as its factorization.

2181980062017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595780 (or 595768 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 2181980062017 in words is "two trillion, one hundred eighty-one billion, nine hundred eighty million, sixty-two thousand, seventeen".